EA's Battlelog has word that all players should be currently receiving double XP for Battlefield 3, which will continue for a couple of days for everybody, and a couple of days past that for premium owners of the military shooter sequel (thanks VG247). Here's word:

As always, double XP means your net gain for any round will be effectively doubled at the end of round. This goes for any map and any mode from the base game or any of our expansion packs, as long as you play on ranked servers.

Full details of the event below. We hope you enjoy it, and hope to see you online.